We hypothesize that adolescents who receive guidelines-based clinician-delivered smoking cessation counseling at primary care visits will be more likely to make quit attempts and more likely to remain abstinent (with better long term cessation rates) at 6 and 12 months after intervention, compared to those who do not receive interventions. In addition, we hypothesize that successful referral to stage-based self-help adjuncts, and more adjunct use will be associated with more quit attempts and better long-term cessation rates.